special education

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Classroom or private instruction involving techniques, exercises, and subject matter designed for students whose learning needs cannot be met by a standard school curriculum.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any of several educational services designed for students with learning difficulties, mental health problems, or other disabilities

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun education of physically or mentally handicapped children whose needs cannot be met in an ordinary classroom